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Improve clipping of RSSI, baseband, audio bar graphs.

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This commit is contained in:
Jared Boone 2016-01-27 12:50:33 -08:00
parent 018b54c711
commit 6917a38106
3 changed files with 37 additions and 27 deletions
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27
firmware/application/ui_rssi.cpp
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@ -23,6 +23,8 @@
#include "event_m0.hpp"
#include "utility.hpp"
#include <algorithm>
namespace ui {
@ -42,22 +44,23 @@ void RSSI::on_hide() {
void RSSI::paint(Painter& painter) {
const auto r = screen_rect();
constexpr int32_t rssi_sample_range = 256;
constexpr int rssi_sample_range = 256;
constexpr float rssi_voltage_min = 0.4;
constexpr float rssi_voltage_max = 2.2;
constexpr float adc_voltage_max = 3.3;
constexpr int32_t raw_min = rssi_sample_range * rssi_voltage_min / adc_voltage_max;
constexpr int32_t raw_max = rssi_sample_range * rssi_voltage_max / adc_voltage_max;
constexpr int32_t raw_delta = raw_max - raw_min;
const int32_t x_0 = 0;
const int32_t x_lim = r.width();
const int32_t x_min = std::max(x_0, (min_ - raw_min) * x_lim / raw_delta);
const int32_t x_avg = std::max(x_min, (avg_ - raw_min) * x_lim / raw_delta);
const int32_t x_max = std::max(x_avg + 1, (max_ - raw_min) * x_lim / raw_delta);
constexpr int raw_min = rssi_sample_range * rssi_voltage_min / adc_voltage_max;
constexpr int raw_max = rssi_sample_range * rssi_voltage_max / adc_voltage_max;
constexpr int raw_delta = raw_max - raw_min;
const range_t<int> x_avg_range { 0, r.width() - 1 };
const auto x_avg = x_avg_range.clip((avg_ - raw_min) * r.width() / raw_delta);
const range_t<int> x_min_range { 0, x_avg };
const auto x_min = x_min_range.clip((min_ - raw_min) * r.width() / raw_delta);
const range_t<int> x_max_range { x_avg + 1, r.width() };
const auto x_max = x_max_range.clip((max_ - raw_min) * r.width() / raw_delta);
const Rect r0 {
static_cast<ui::Coord>(r.left() + x_0), r.top(),
static_cast<ui::Dim>(x_min - x_0), r.height()
static_cast<ui::Coord>(r.left()), r.top(),
static_cast<ui::Dim>(x_min), r.height()
};
painter.fill_rectangle(
r0,
@ -93,7 +96,7 @@ void RSSI::paint(Painter& painter) {
const Rect r4 {
static_cast<ui::Coord>(r.left() + x_max), r.top(),
static_cast<ui::Dim>(x_lim - x_max), r.height()
static_cast<ui::Dim>(r.width() - x_max), r.height()
};
painter.fill_rectangle(
r4,